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A141476 Triangle T(n,k) = A000142(n-k)*A003319(k+1) read by rows. +0
3
1, 1, 1, 2, 1, 3, 6, 2, 3, 13, 24, 6, 6, 13, 71, 120, 24, 18, 26, 71, 461, 720, 120, 72, 78, 142, 461, 3447, 5040, 720, 360, 312, 426, 922, 3447, 29093, 40320, 5040, 2160, 1560, 1704, 2766, 6894, 29093, 273343, 362880, 40320, 15120, 9360, 8520, 11064, 20682 (list; table; graph; listen)
OFFSET

0,4

FORMULA

Row sums: sum_{k=0..n} T(n,k) = A000142(n+1) = (n+1)!.

EXAMPLE

The triangle starts at row n=0 with columns 0<=k<=n:

..1;

..1,.1;

..2,.1,.3;

..6,.2,.3,13;

.24,.6,.6,13,71;

120,24,18,26,71,461;

CROSSREFS

Sequence in context: A059298 A156914 A059434 this_sequence A145888 A106578 A006895

Adjacent sequences: A141473 A141474 A141475 this_sequence A141477 A141478 A141479

KEYWORD

nonn,tabl

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), Aug 09 2008

EXTENSIONS

Edited and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Dec 05 2008

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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